| 单词 | air-lift pump |
| 释义 | > as lemmasair-lift pump b. Engineering. Usually in form air-lift. A pumping device operated by compressed air. Frequently attributive, esp. in air-lift pump. ΘΚΠ society > occupation and work > equipment > pump > [noun] > operated by compressed air airlift1893 1893 J. G. Pohle Brit. Patent 22,372/1892 1 My process..I term the ‘air lift process’. 1902 Encycl. Brit. XXXIII. 776/1 The object attained by the air-lift is precisely the same as that attained by putting a pump some distance down a bore-hole. 1917 Inst. Mech. Engineers: Proc. 628 In an air-lift pump in operation the air-bubbles are rising through a mixture of variable density. 1961 Fowler's Mech. Engineer's Pocket Bk. (ed. 63) 391 Air-lift pumps are frequently put down to test new wells, and are particularly useful for raising oil from depths..wherewith plunger pumps would be impracticable. 2000 Limnol. & Oceanogr. 45 149/2 The pulsed jet flow was produced by an air-lift pump forcing 4.3 to 5.6 pulses per minute of 2.6-liter [of] water per pulse into the tank. < as lemmas |
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